Solar origin of anisotropic electron events observed by Ulysses and ACE

We investigate the solar origin of energetic collimated electron events obs erved in situ by the EPAM and/or HISCALE particle experiments aboard the AC E and ULYSSES spacecraft, respectively. This study has been performed for t wo months, September and October 1999 when Ulysses was magnetically connect ed to the solar disk at heliolongitudes visible at the Earth. The two space craft were separated by about 35 degrees in latitude and up to 60 degrees i n longitude. In this paper, results are described for one period only, Octo ber 24-November 1, 1999. It is found that not all the anisotropic events ar e observed by both spacecrafts; there exists a strong dependence on the spa cecraft's magnetic connection back to the Sun.